Alert archive / Arizona / Flash Flood Warnings in 1996

Flash Flood Warning 4, NWS Phoenix, AZ

July 11, 1996Gila County, Arizona

NWS Phoenix, AZ issued this flash flood warning at Jul 11, 1996, 6:10 PM MST for Gila County, Arizona. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 11, 1996, 6:10 PM MST (01:10 UTC)
Expired
Jul 11, 1996, 7:10 PM MST
In force
60 min
Issued by
NWS Phoenix, AZ
Area
Whole counties

County Gila County, AZ

The nearest sounding before it

Tuscon, AZ (KTUS), launched 00:00Z, 1.2 hours before the alert went out and 181 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Tuscon, AZ at 00:00Z on 1996-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 498 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 00:00Z on 1996-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
498 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
2173 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KPHX 120108
FFWPHX
AZC007-120210-

BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PHOENIX AZ
610 PM MST THU JUL 11 1996

THE NATIONAL WEATHER SERVICE IN PHOENIX AZ HAS ISSUED A FLASH FLOOD
WARNING EFFECTIVE UNTIL 710 PM MST FOR PEOPLE IN THE FOLLOWING
LOCATIONS...

IN EAST-CENTRAL ARIZONA

  ...SOUTHEASTERN GILA COUNTY
     INCLUDING SAN CARLOS

A CLUSTER OF STRONG THUNDERSTORMS HAVE BEEN PERSISTING ACROSS FAR
SOUTHEAST GILA COUNTY SINCE ABOUT 430 OR 5 PM MST. DOPPLER RADAR HAS
ESTIMATED AROUND 2 AND A HALF INCHES OF RAIN HAS FALLEN BETWEEN 5 AND
6 PM ALONG THE SAN CARLOS RIVER NORTHEAST OF THE TOWN OF SAN CARLOS.
THIS WILL LIKELY CAUSE A SIGNIFICANT RISE IN THE SAN CARLOS RIVER AND
ITS TRIBUTARIES FROM NORTHEAST OF SAN CARLOS DOWN THROUGH PERIDOT TO
THE SAN CARLOS RESERVOIR.  

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.
 
DO NOT TRY TO CROSS FLOODED HIGHWAYS. MOST FLASH FLOOD DEATHS OCCUR
IN AUTOMOBILES.

ESTLE

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jul 11, 1:35 PM MST, 4 hours 35 minutes before
AZZ015>026-121200-

SEVERE WEATHER OUTLOOK FOR SOUTHERN AND CENTRAL ARIZONA
NATIONAL WEATHER SERVICE PHOENIX AZ
130 PM MST THU JUL 11 1996

LOCALLY HEAVY RAIN WILL OCCUR WITH SOME THUNDERSTORMS IN EAST-CENTRAL
AND SOUTHEAST ARIZONA THIS AFTERNOON AND EVENING.

THE AIRMASS OVER ARIZONA IS VERY MOIST AND THE WINDS ALOFT ARE
LIGHT...SO THUNDERSTORMS THAT DEVELOP WILL MOVE SLOWLY. THUS...
A FEW AREAS...MAINLY INTERMEDIATE AND HIGHER ELEVATIONS...COULD
RECEIVE HEAVY RAIN LONG ENOUGH TO PRODUCE RUNOFF. STRONG GUSTY WINDS
ARE POSSIBLE WITH THE STRONGEST STORMS.

LISTEN FOR FORECASTS AND POSSIBLE WATCHES OR WARNINGS FROM THE
NATIONAL WEATHER SERVICE.

ELLIS

Nearby

Flash Flood Warnings in Arizona, 1996Every flash flood warning in 1996

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.